205630402 has 16 divisors (see below), whose sum is σ = 327462912. Its totient is φ = 96508480.

The previous prime is 205630363. The next prime is 205630417. The reversal of 205630402 is 204036502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5127 + ... + 20917.

It is an arithmetic number, because the mean of its divisors is an integer number (20466432).

Almost surely, 2^205630402 is an apocalyptic number.

205630402 is a deficient number, since it is larger than the sum of its proper divisors (121832510).

205630402 is a wasteful number, since it uses less digits than its factorization.

205630402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16193.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 205630402 is about 14339.8187575715. The cubic root of 205630402 is about 590.2406391749.

Adding to 205630402 its reverse (204036502), we get a palindrome (409666904).

The spelling of 205630402 in words is "two hundred five million, six hundred thirty thousand, four hundred two".